Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation.
15 * 1411 * 83 * 137 * 218 * 100
1
×, ÷, =, +, −
2
×, =, −, ÷, +
3
+, −, ×, =, ÷
4
×, +, ÷, −, =